Portable electronic device

Abstract

A portable electronic device 100 includes a horizontally long casing, both ends of which are gripped by a user's both hands, respectively. The device further includes a LCD fit into the front face of the casing 10. Outwardly projecting bulges are respectively formed at both sides of the rear face of the casing where fingers of the user gripping the casing 10 placed. Since the fingers and palms are naturally flexed to fit to the dome-like bulges 42L, 42R, the portable electronic device 100 fits comfortably in the user's hands. The operability is hard to be degraded even if the device is vibrated strongly during a game play with the device.

The invention claimed is: 
     
       1. A portable electronic device comprising:
 a left-hand area and a right-hand area capable of being gripped by a user's both hands, respectively; 
 a display unit located between the left-hand area and the right-hand area; 
 an operation device arranged to operate an object in the image displayed on the display unit and located on the left-hand area and the right-hand area, respectively; and 
 an analog operation device arranged to output an analog signal for direction of the object; and 
 a home button; and 
 a plurality of button keys located on the right-hand area, the plurality of button keys each outputting a single instruction, 
 wherein the analog operation device and the home button are arranged so that the user can operate an either one of the analog operation device and the home button with a same thumb while gripping the portable electronic device, and 
 wherein a horizontal center of the analog operation device is located closer toward a center of the portable electronic device than a horizontal center of the plurality of button keys. 
 
     
     
       2. A portable electronic device comprising:
 a left-hand area and a right-hand area capable of being gripped by a user's both hands, respectively; 
 a display unit located between the left-hand area and the right-hand area; 
 an operation device arranged to operate an object in the image displayed on the display unit and located on the left-hand area and the right-hand area, respectively; and 
 an analog operation device arranged to output an analog signal for direction of the object; and 
 a home button, 
 wherein the analog operation device and the home button are arranged so that the user can operate an either one of the analog operation device and the home button with a same thumb while gripping the portable electronic device; and 
 wherein the analog operation device comprises:
 a first analog device located closer to the left-hand area than the right-hand area; and 
 a second analog device located closer to the right-hand area than the left-hand area. 
 
 
     
     
       3. The portable electronic device of  claim 2 , wherein a home button is located on the portable electronic device at a position between the first analog device and the second analog device.